CN113225821B

CN113225821B - Data transmission method, terminal equipment and network equipment

Info

Publication number: CN113225821B
Application number: CN202110407346.3A
Authority: CN
Inventors: 赵振山; 卢前溪; 林晖闵
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2018-08-17
Filing date: 2018-08-17
Publication date: 2023-04-07
Anticipated expiration: 2038-08-17
Also published as: KR20210045455A; EP3823394B1; CN112567854A; EP3823394A4; EP3823394A1; WO2020034222A1; CN113225821A; TW202013919A; AU2018437157A1; JP2022511254A; EP4203374A1; US20210168817A1

Abstract

The invention discloses a data transmission method, a terminal device, a network device, a chip, a computer readable storage medium, a computer program product and a computer program, wherein the method comprises the following steps: determining a basic parameter set used by a first sideline channel; and carrying out data transmission on a first sideline channel according to the basic parameter set.

Description

Data transmission method, terminal equipment and network equipment

The application is a divisional application with the invention name of 'a data transmission method, terminal equipment and network equipment', and is a Chinese patent application number 201880096558.0 at the stage of entering Chinese countries of PCT international patent application PCT/CN2018/101197 of 08-17.2018.

Technical Field

The present invention relates to the field of information processing technologies, and in particular, to a data transmission method, a terminal device, a network device, a chip, a computer-readable storage medium, a computer program product, and a computer program.

Background

The car networking system is a Long Term evolution terminal-to-terminal (LTE-D2D) based Sidelink transmission technology (SL, sidelink). The vehicle networking technology (V2X) is standardized in the third Generation Partnership Project (3 GPP, the 3rd Generation Partnership Project) Rel-14, defining two modes of transmission: mode 3 and mode 4; in the 5G NR system, a flexible frame structure design is adopted, a plurality of basic parameter sets are introduced, and how to transmit and receive data by using the plurality of basic parameter sets in system processing is a problem to be solved.

Disclosure of Invention

To solve the foregoing technical problems, embodiments of the present invention provide a data transmission method, a terminal device, a network device, a chip, a computer-readable storage medium, a computer program product, and a computer program.

In a first aspect, a data transmission method is provided, which is applied to a terminal device, and includes:

determining a basic parameter set used by a first sideline channel;

and carrying out data transmission on a first sideline channel according to the basic parameter set.

In a second aspect, a data transmission method is provided, which is applied to a network device, and includes:

the network equipment determines configuration information, wherein the configuration information is used for the terminal equipment to determine a basic parameter set used by a first sideline channel;

and the network equipment sends the configuration information to the terminal equipment.

In a third aspect, a terminal device is provided, including:

the first processing unit is used for determining a basic parameter set used by a first sideline channel;

and the first communication unit is used for carrying out data transmission on a first sideline channel according to the basic parameter set.

In a fourth aspect, a network device is provided, which includes:

the second processing unit is used for determining configuration information, and the configuration information is used for the terminal equipment to determine a basic parameter set used by the first sideline channel;

and the second communication unit is used for sending the configuration information to the terminal equipment.

In a fifth aspect, a terminal device is provided that includes a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory, and executing the method in the first aspect or each implementation manner thereof.

In a sixth aspect, a network device is provided that includes a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory, and executing the method of the second aspect or each implementation mode thereof.

In a seventh aspect, a chip is provided for implementing the method in any one of the first to second aspects or its implementation manners.

Specifically, the chip includes: a processor configured to call and run the computer program from the memory, so that the device on which the chip is installed performs the method in any one of the first aspect to the second aspect or the implementation manners thereof.

In an eighth aspect, a computer-readable storage medium is provided for storing a computer program, the computer program causing a computer to perform the method of any one of the first to second aspects or implementations thereof.

In a ninth aspect, there is provided a computer program product comprising computer program instructions to cause a computer to perform the method of any one of the first to second aspects or implementations thereof.

A tenth aspect provides a computer program that, when run on a computer, causes the computer to perform the method of any one of the first to second aspects or implementations thereof.

The technical scheme of the embodiment of the invention can transmit data based on the selected basic parameter set when the terminal equipment transmits the data through the channel. Therefore, the problem of how to select the basic parameter set for data transmission and reception under the condition that a plurality of basic parameter sets exist is solved, and the interaction efficiency of the terminal is ensured.

Drawings

Fig. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application;

fig. 2 is a schematic diagram two of a communication system architecture provided by an embodiment of the present application;

fig. 3 is a first flowchart illustrating a data transmission method according to an embodiment of the present invention;

fig. 4 is a schematic flow chart of a data transmission method according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;

fig. 6 is a schematic diagram of a network device structure according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a communication device according to an embodiment of the present invention;

fig. 8 is a schematic block diagram of a chip provided in an embodiment of the present application.

Fig. 9 is a third schematic diagram of a communication system architecture provided in an embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The scheme provided by the embodiment of the application can be applied to the vehicle networking systems provided by fig. 1 and 2, and the vehicle networking systems are side link transmission technologies (SL, sidelink) based on LTE-Device-to-Device (D2D), and have higher spectral efficiency and lower transmission delay. The vehicle networking technology (V2X) is standardized in 3GPP Rel-14, defining two transmission modes: mode 3 and mode 4. Wherein, mode 3: as shown in fig. 1, the transmission resource of the terminal device, i.e. the vehicle-mounted terminal, is allocated by the base station, and the vehicle-mounted terminal performs data transmission on the sidelink according to the resource allocated by the base station; the base station may allocate resources for single transmission to the terminal, and may also allocate resources for semi-static transmission to the terminal. Mode 4: as shown in fig. 2, the vehicle-mounted terminal adopts a transmission mode of listening (sending) + reserving (reservation). The vehicle-mounted terminal acquires an available transmission resource set in a resource pool in an intercepting mode, and the terminal randomly selects a resource from the set to transmit data.

It should be understood that the terms "system" or "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

The first embodiment,

An embodiment of the present invention provides a data transmission method, which is applied to a terminal device, and as shown in fig. 3, the method includes:

step 101: determining a basic parameter set used by a first sideline channel;

step 102: and carrying out data transmission on a first sideline channel according to the basic parameter set.

The terminal device may obtain and store at least one basic parameter set according to a pre-configuration or a configuration of a network side.

The basic parameter set includes: information such as subcarrier interval, cyclic Prefix (CP) length or type; for example, in 5G New Radio (NR), supportable subcarrier spacing sizes may include 15khz,30khz,60khz,120khz, etc., and supportable CP types include normal CP, extended CP.

The following description is made for two cases of correspondence and indication information, respectively:

in the first case, the basic parameter set used by the first sideline channel is determined according to the corresponding relation; in this case, the terminal device selects a basic parameter set from at least one basic parameter set as the basic parameter set of the first sideline channel through at least one corresponding relationship configured or preconfigured on the network side. The method specifically comprises the following steps:

scene 1,

The first side channel uses resources in a first resource pool, and according to the first resource pool and a first corresponding relation, a first basic parameter set is determined in at least one basic parameter set to be the basic parameter set used by the first side channel; wherein the first correspondence is a correspondence between at least one resource pool and at least one basic parameter set.

In this scenario, when the first sideline channel adopts the first resource pool, the first basic parameter set corresponding to the first resource pool may be selected according to the first corresponding relationship.

For example, in V2x, one or more resource pools may be configured in a network configuration or pre-configuration manner, each resource pool having a corresponding basic parameter set, e.g., resource pool 1 using 15kHz subcarrier spacing, normal CP, resource pool 2 using 60kHz subcarrier spacing, extended CP. According to a first corresponding relation, it can be determined that different resource pools can correspond to different basic parameter sets, wherein the first corresponding relation represents the corresponding relation between the resource pools and the basic parameter sets. The first sideline channel uses the resource in the first resource pool, and the basic parameter set of the resource pool can be determined according to the first corresponding relation, namely the basic parameter set used by the first sideline channel is determined.

Wherein the first correspondence between the at least one resource pool and the at least one basic parameter set may be determined by means of network configuration or pre-configuration.

In addition, the network side can also configure the basic parameter set of each resource pool in an RRC signaling manner.

Scene 2,

The first side channel is transmitted on a first carrier, and a first basic parameter set is determined to be a basic parameter set used by the first side channel in at least one basic parameter set according to the first carrier and a second corresponding relation; wherein the second correspondence is a correspondence between at least one carrier and at least one basic parameter set.

In this scenario, when the first sidelink channel is transmitted on the first carrier, the first basic parameter set corresponding to the first carrier may be selected according to the first corresponding relationship.

In this scenario, multiple carriers may be supported, for example, 8 carriers may be supported in V2X of Rel-15, and different basic parameter sets may be configured for the 8 carriers, respectively.

For example, considering a backward compatible Rel-14 or Rel-15 terminal, a 15kHz, basic parameter set of normal CP is adopted on a carrier with Rel-14 or Rel-15; other sets of basic parameters may be employed on other carriers.

It should be noted that the foregoing is only an example, and that the specific carrier in which the basic parameter set is used may be determined by means of pre-configuration or network configuration.

In addition, regarding the second corresponding relationship that different carriers correspond to different basic parameter sets, different basic parameter sets may correspond to different carrier frequency bands; for example, NR-V2X supports two carrier bands, frequency range 1 (FR 1, frequency range 1) and Frequency range 2 (FR 2, frequency range 1); the second correspondence may be that different sets of basic parameters may be used in different carrier bands, such as 30kHz subcarrier spacing in the FR1 band, e.g. 3.4GHz, and 120kHz subcarrier spacing in the FR2 band, e.g. 30 GHz.

In this scenario, the basic parameter sets corresponding to different types may also be determined according to the carrier type.

Specifically, when the first carrier is a carrier for transmitting uplink data; it may be determined that the first sidelink channel adopts the same basic parameter set as the uplink data according to the first carrier and the second correspondence.

That is to say, the configured second correspondence relationship may also be that the basic parameter set corresponding to the first type of carrier is the same as the basic parameter set of the uplink data; the corresponding basic parameter set on the second type carrier is the same as or different from the basic parameter set of the uplink data. The first carrier is a carrier used for transmitting uplink data, and the second carrier is a special carrier. For example, V2X may operate on either a dedicated carrier (5.9 GHz) or an uplink carrier. The uplink data transmitted on the uplink carrier uses a 30kHz subcarrier spacing, and when V2X data is transmitted on this carrier, the V2X data is also transmitted using the same 30kHz subcarrier spacing as the uplink data. When V2X data is transmitted on a proprietary carrier, a pre-configured or network configured set of basic parameters is used, which may be the same or different from the set of basic parameters for upstream data.

It should be understood that the above embodiment is described by taking the first sidelink channel on the first carrier as an example, and the embodiment is also applicable to the case where the first sidelink channel is transmitted on a first Bandwidth Part (BWP), and the terminal determines the basic parameter set of the first sidelink channel according to the first Bandwidth Part and the corresponding relationship. And will not be described in detail herein.

Scene 3,

The first side-row channel is a first side-row channel, and a first basic parameter set is determined to be a basic parameter set used by the first side-row channel in at least one basic parameter set according to the first side-row channel and a third corresponding relation; wherein the third correspondence is a correspondence between at least one type of channel and at least one basic parameter set.

In this scenario, the at least one type of channel may be multiple types, where the first type of side channel is a channel used by the terminal device. For example, at least one type of channel may include a PSBCH or a channel transmitting PSSS/SSSS, and may also include other types of channels, which are not described herein. Accordingly, one basic parameter set is used for the PSHCH or the channel transmitting PSSS/SSSS, e.g. 15kHz subcarrier spacing, normal CP; other kinds of channels employ other basic parameter sets.

Scene 4,

The data transmitted by the first sidelink channel has a first service characteristic, and a first basic parameter set is determined in at least one basic parameter set as a basic parameter set used by the first sidelink channel according to the first service characteristic and a fourth corresponding relation; wherein the fourth correspondence is a correspondence between at least one service characteristic and at least one basic parameter set.

In this scenario, the sideline channel may transmit data with multiple service characteristics, and when the transmitted data has the first service characteristic, the first basic parameter set may be selected from the fourth corresponding relationship according to the first service characteristic.

For example, the at least one basic parameter set may be two basic parameter sets; correspondingly, two types of services to be transmitted are assumed; that is, two basic parameter sets are predefined, and when the service to be transmitted belongs to the first type of service, the first basic parameter set is adopted, and when the service to be transmitted belongs to the second type of service, the second basic parameter set is adopted.

The characteristics of the traffic to be transmitted comprise one of: delay requirement and Quality of Service (QoS) information of the Service to be transmitted; for example, different types of services to be transmitted are divided, and the division can be performed according to the delay requirements of the services, for example, the services to be transmitted with high delay and the services to be transmitted with low delay can be divided; or QoS is adopted for partitioning, for example, QCI is used for service partitioning, and QCIs 1 to 5 are assumed to be first class services, and QCIs 6 to 9 are assumed to be second class services.

For example, the delay requirements of the service to be transmitted are divided into two categories, type 1: delay is less than or equal to 10ms, type 2: the time domain is greater than 10ms. For type 1, the corresponding basic parameter set is 60kHz subcarrier spacing, and for type 2, the corresponding basic parameter set is 15kHz subcarrier spacing. When the data transmitted by the first side row channel is the service of type 1, the data transmission is carried out by adopting the subcarrier interval of 60 kHz; when the data transmitted by the first sidelink channel is the type 2 service, the data transmission is performed by using the subcarrier spacing of 15 kHz.

Scene 5,

The first sideline channel takes a first type of synchronous source type as a synchronous source, and determines a first basic parameter set as a basic parameter set used by the first sideline channel in at least one basic parameter set according to the first type of synchronous source type and a fifth corresponding relation; wherein the fifth correspondence is a correspondence between at least one synchronization source type and at least one basic parameter set.

For example, in V2X, several synchronization source types { GNSS, eNB, UE } are included, and when different types of synchronization sources are employed, different sets of basic parameters are employed for the channel. For example, when eNB is used as the synchronization source, normal CP is used, and when GNSS is used as the synchronization source, extended CP is used. It should be understood that this is merely an example, and in the actual process, there may be other corresponding manners, but this embodiment is not exhaustive.

Finally, it is noted that, in the first case, the first side row channel is one of a physical side row shared channel (psch), a physical side row control channel (PSCCH), or a physical side row broadcast channel (PSBCH). Of course, it should be understood that the first sideline channel may be other types of channels, and the description thereof is omitted.

In the second case, the basic parameter set used by the first sideline channel is determined according to the indication of the second channel, which is as follows:

the set of basic parameters used in the first sidelink may be determined from an explicit indication, or an implicit indication, of the second channel.

Scene 1,

The second channel comprises first indication information, and the basic parameter set used in the first side-row channel is determined according to the first indication information, wherein the first indication information is used for indicating the basic parameter set used by the first side-row channel.

That is, the second channel may transmit the first indication information, and the basic parameter set used in the first sideline channel is determined through the first indication information transmitted by the second channel.

Thus, the basic parameter set used in the first sideline channel is explicitly indicated via the second channel.

In this scenario, the first side-row channel is a physical side-row shared channel PSCCH, and the second channel is a physical side-row control channel PSCCH or a physical downlink control channel PDCCH. Of course, other situations may also be possible, for example, the first sidelink channel is PSCCH, and the second channel is PDCCH.

The basic parameter set used by the second channel may be preset or configured by a network.

For example, the second channel adopts an explicit indication, which may be determined directly according to indication information carried in the second channel, for example, 1 bit of information is adopted, and the 1 bit of information is used to indicate the basic parameter set of the first sideline channel; of course, if the number of basic parameter sets is greater than 2, more bits may be used to indicate the basic parameter set of the first sideline channel, for example, 3 bits may be used for indication, assuming that 000 is used to indicate the first basic parameter set, 001 is used to indicate the second basic parameter set, and 010 is used to indicate the third basic parameter set; it should be understood that there may be more bits for indicating more basic parameter sets, but this embodiment is not exhaustive.

For example: and configuring an eighth corresponding relation through pre-configuration or network, wherein the eighth corresponding relation comprises at least one piece of index information and a basic parameter set corresponding to the at least one piece of index information. The second channel carries an index information, and the basic parameter set of the first side-row channel can be determined through the index information and the eighth corresponding relation.

Scene 2,

The second channel adopts implicit indication, and can include: and indicating through a demodulation reference signal (DMRS) of the second channel, or indicating through scrambling code information of the second channel.

Wherein the indicating with the DMRS of the second channel includes: and determining a basic parameter set used by the first sidelink channel according to a sixth corresponding relationship and at least one of the sequence, the cyclic shift, the Orthogonal Cover Code (OCC), the resource position and the root sequence of the DMRS corresponding to the second channel, wherein the sixth corresponding relationship is the corresponding relationship between the basic parameter set and at least one of the sequence, the cyclic shift, the Orthogonal Cover Code (OCC), the resource position and the root sequence of the DMRS.

It should be understood that the sixth corresponding relationship may also be configured on the network side or preset. For example, by PSCCH DMRS indication: different basic parameter sets may be indicated by a sequence of DMRS, cyclic shift, OCC (Orthogonal Cover Code), resource location, root sequence, and the like. Specifically, different DMRS sequences may correspond to different basic parameter sets, different cyclic shifts may also correspond to different basic parameter sets, different OCCs correspond to different basic parameter sets, different resource locations correspond to different basic parameter sets, and different following sequences correspond to different basic parameter sets; each parameter may be used simultaneously or partially, and only one parameter may be used to correspond to the basic parameter set.

And/or the scrambling code information indication through the second channel comprises: and determining a basic parameter set used by the first sideline channel according to the scrambling code information of the second channel and a seventh corresponding relation, wherein the seventh corresponding relation is the corresponding relation between at least one piece of scrambling code information and at least one basic parameter set.

That is, the basic parameter set employed by the first sidelink channel may be determined based on the scrambling code employed by the second channel by pre-configuration or network-side configuration of the seventh correspondence. For example, the information bits of the second channel, i.e. PSCCH, need to be scrambled, and the basic parameter set used by the first side channel, e.g. PSCCH, may be implicitly indicated by the different scrambling sequence used by the second channel.

In actual transmission, the first sidelink channel and the second channel may be transmitted in a Time Division Multiplexing (TDM) manner, the second channel occupies the first K symbols, the first sidelink channel occupies the remaining symbols, and in this case, the first sidelink channel and the second channel, such as the PSCCH and PSCCH, may use different basic parameter sets. For example, the PSCCH uses a 15kHz subcarrier spacing and the PSCCH uses a 30kHz subcarrier spacing.

The basic parameter set used by the second channel may be set according to the corresponding relationship, where the manner in which the second channel determines the basic parameter set may be determined in the manner of the foregoing multiple scenarios, for example, the basic parameter set used by the second channel may be determined for at least one of the first corresponding relationship to the fifth corresponding relationship, which is not described herein again.

Further, in the second case, the first side-line channel is a physical side-line shared channel PSCCH, and the second channel is a physical side-line control channel PSCCH or a physical downlink control channel PDCCH.

Or the first side row channel is a PSCCH, and the second channel is a PDCCH.

Of course, it is also understood that there may be more first side-row channels and second channel pairs, which are not exhaustive.

Therefore, by adopting the scheme, when the terminal equipment transmits data through the channel, the data can be transmitted based on the selected basic parameter set. Therefore, the problem of how to select the basic parameter set for data transmission and reception under the condition that a plurality of basic parameter sets exist is solved, and the interaction efficiency of the terminal is ensured.

Example II,

An embodiment of the present invention provides a data transmission method, as shown in fig. 4, including:

step 201: the network equipment determines configuration information, wherein the configuration information is used for the terminal equipment to determine a basic parameter set used by a first sideline channel;

step 202: and the network equipment sends the configuration information to the terminal equipment.

The method further comprises the following steps: configuring at least one basic parameter set for the terminal device. That is to say, in the scheme provided in this embodiment, the network side may also configure one or more basic parameter sets for the terminal device in advance; the configuration mode may be sending through system signaling or sending through other modes, which is not exhaustive here.

The configuration information is used for indicating at least one of the following:

a first correspondence between at least one resource pool and at least one basic parameter set;

a second correspondence between the at least one carrier and the at least one basic parameter set;

a third correspondence between the at least one channel and the at least one basic parameter set;

a fourth corresponding relation between the characteristics of at least one service to be transmitted and at least one basic parameter set;

a fifth correspondence between the at least one synchronization source type and the at least one base parameter set.

The basic parameter set includes: the basic parameter set includes information such as subcarrier spacing, cyclic Prefix (CP) length or type; in 5G New Radio (NR), supportable subcarrier spacing sizes may include 15khz,30khz,60khz,120khz, and supportable CP types include normal CP and extended CP.

The following description will be made for two cases of correspondence and indication information, respectively:

scene 1,

The configuration information is used for indicating a first corresponding relation between at least one resource pool and at least one basic parameter set.

In this scenario, when the first sidelight channel of the terminal device adopts the first resource pool, the first basic parameter set corresponding to the first resource pool may be selected according to the first corresponding relationship configured on the network side.

Scene 2,

The configuration information is used for indicating a second correspondence between at least one carrier and at least one basic parameter set.

In this scenario, when the first sidelink channel of the terminal device transmits on the first carrier, the first basic parameter set corresponding to the first carrier may be selected according to the first correspondence.

In addition, regarding the second corresponding relationship that different carriers correspond to different basic parameter sets, different basic parameter sets may correspond to different carrier frequency bands; for example, NR-V2X supports two carrier bands, frequency range 1 (FR 1, frequency range 1) and Frequency range 2 (FR 2, frequency range 1); the second correspondence may be that different basic parameter sets may be used in different carrier frequency bands, such as 30kHz subcarrier spacing in the FR1 band, e.g., 3.4GHz, and 120kHz subcarrier spacing in the FR2 band, e.g., 30 GHz.

Specifically, the configured second corresponding relationship may also be that the basic parameter set corresponding to the first type of carrier is the same as the basic parameter set of the uplink data; the corresponding basic parameter set on the second type carrier is the same as or different from the basic parameter set of the uplink data. The first type of carrier is a carrier used for transmitting uplink data, and the second type of carrier is a special carrier. For example, V2X may operate on either a dedicated carrier (5.9 GHz) or an uplink carrier. The uplink data transmitted on the uplink carrier uses a 30kHz subcarrier spacing, and when V2X data is transmitted on this carrier, the V2X data is also transmitted using the same 30kHz subcarrier spacing as the uplink data. When V2X data is transmitted on a proprietary carrier, a pre-configured or network configured set of basic parameters is used, which may be the same or different from the set of basic parameters for upstream data.

Scene 3,

The configuration information is used for indicating a third correspondence between the at least one channel and the at least one basic parameter set.

In this scenario, the at least one type of channel may be multiple types, for example, the channel may include a PSBCH or a channel for transmitting PSSS/SSSS, and may also include other types of channels, which is not described herein again. Accordingly, one basic set of parameters is used for the PSHCH or the channel transmitting the PSSS/SSSS, e.g. 15kHz subcarrier spacing, normal CP; other kinds of channels employ other basic parameter sets.

Scene 4,

The configuration information is used for indicating a fourth corresponding relation between the characteristics of at least one service to be transmitted and at least one basic parameter set.

In this scenario, the sideline channel may transmit data with multiple service characteristics, for example, when the data transmitted by the terminal device has the first service characteristic, the first basic parameter set may be selected from the fourth corresponding relationship according to the first service characteristic.

The characteristics of the traffic to be transmitted comprise one of: delay requirement and Quality of Service (QoS) information of a Service to be transmitted; for example, different types of services to be transmitted can be divided according to the delay requirements of the services, for example, the services to be transmitted with high delay and the services to be transmitted with low delay can be divided; or QoS is adopted for partitioning, for example, QCI is used for service partitioning, and QCI 1-5 is assumed to be a first class of service and QCI6-9 is assumed to be a second class of service, however, other partitioning manners may also exist, which may be three or more classes of service, and each class of service corresponds to different basic parameter sets.

For example, the delay requirements of the service to be transmitted are classified into two types, type 1: delay is less than or equal to 10ms, type 2: the time domain is greater than 10ms. For type 1, the corresponding basic parameter set is 60kHz subcarrier spacing, and for type 2, the corresponding basic parameter set is 15kHz subcarrier spacing. When the data transmitted by the first side row channel is the service of type 1, the data transmission is carried out by adopting the subcarrier interval of 60 kHz; when the data transmitted by the first sidelink channel is the type 2 service, the data transmission is performed by using the subcarrier spacing of 15 kHz.

Scene 5,

The configuration information is configured to indicate a fifth correspondence between the at least one synchronization source type and the at least one basic parameter set.

For example, in V2X, several synchronization source types, { GNSS, eNB, UE }, are included, and when different types of synchronization sources are employed, different basic parameter sets are employed for the channel. For example, when the eNB is used as the synchronization source, the normal CP is used, and when the GNSS is used as the synchronization source, the extended CP is used.

Finally, it should be noted that, in the first case, the first side row channel is one of a physical side row shared channel (psch), a physical side row control channel (PSCCH), or a physical side row broadcast channel (PSBCH). Of course, it should be understood that the first sideline channel may be other types of channels, and the description thereof is omitted.

In the second case, the network device sends the indication information to the terminal device through the second channel.

Scene 1,

The second channel comprises first indication information, wherein the first indication information is used for indicating a basic parameter set used by the first sidelink channel.

In this scenario, the first side-line channel is a physical side-line shared channel PSSCH, and the second channel is a physical side-line control channel PSCCH or a physical downlink control channel PDCCH. Of course, other situations may also be possible, for example, the first side channel is PSCCH, and the second channel is PDCCH.

For example: and configuring an eighth corresponding relation through preconfiguration or network, wherein the eighth corresponding relation comprises at least one piece of index information and a basic parameter set corresponding to the at least one piece of index information. The second channel carries an index information, and the basic parameter set of the first side-row channel can be determined through the index information and the eighth corresponding relation.

Scene 2,

The second channel adopts implicit indication, and the configuration information is further used for indicating at least one of the following:

a sixth correspondence between at least one of a sequence of the DMRS, a cyclic shift, an orthogonal cover code OCC, a resource location, a root sequence, and at least one basic parameter set;

a seventh correspondence between at least one scrambling code and at least one basic parameter set.

That is, the network device may implicitly indicate through the DMRS of the second channel. It should be understood that the sixth corresponding relationship may also be configured on the network side or preset. For example, by PSCCH DMRS indication: the different basic parameter sets may be indicated by a sequence of DMRS, cyclic shift, OCC (Orthogonal Cover Code), resource location, root sequence, and the like. Specifically, different DMRS sequences may correspond to different basic parameter sets, different cyclic shifts may also correspond to different basic parameter sets, different OCCs correspond to different basic parameter sets, different resource locations correspond to different basic parameter sets, and different following sequences correspond to different basic parameter sets; each parameter may be used simultaneously or partially, and only one parameter may be used to correspond to the basic parameter set.

And/or the network device may implicitly indicate by scrambling code information of the second channel. That is, the seventh correspondence may be configured by pre-configuration or network side configuration, so that the terminal device determines the basic parameter set employed by the first sidelink channel based on the scrambling code employed by the second channel. For example, the information bits of the second channel, i.e. PSCCH, need to be scrambled, and the basic parameter set used by the first sidelink channel, e.g. PSCCH, may be implicitly indicated by the different scrambling sequence used by the second channel.

In actual transmission, the first sidelink channel and the second channel may be transmitted in a Time Division Multiplexing (TDM) manner, the second channel occupies the first K symbols, the first sidelink channel occupies the remaining symbols, and in this case, different basic parameter sets may be used for the first sidelink channel and the second channel. For example, the first sideline channel may employ a subcarrier spacing of 15kHz and the second channel may employ a subcarrier spacing of 30kHz

Further, in the second case, the first side-line channel is a physical side-line shared channel psch, and the second channel is a physical downlink control channel PDCCH.

Or, the first side-row channel is a PSCCH, and the second channel is a PDCCH.

Example III,

An embodiment of the present invention provides a terminal device, as shown in fig. 5, including:

a first processing unit 51 determining a basic parameter set used by a first sideline channel;

and a first communication unit 52 for transmitting data on the first sideline channel according to the basic parameter set.

in the first case, the first processing unit 51 determines the basic parameter set used by the first sideline channel according to the corresponding relationship; in this case, the terminal device selects a basic parameter set from at least one basic parameter set as the basic parameter set of the first sideline channel through at least one corresponding relationship configured or preconfigured on the network side. The method specifically comprises the following steps:

scene 1,

A first processing unit 51, where the first sideline channel uses resources in a first resource pool, and determines, according to the first resource pool and a first corresponding relationship, a first basic parameter set as a basic parameter set used by the first sideline channel in at least one basic parameter set; wherein the first correspondence is a correspondence between at least one resource pool and at least one basic parameter set.

For example, in V2x, one or more resource pools may be configured in a network configuration or pre-configuration manner, each resource pool having a corresponding basic parameter set, e.g., resource pool 1 using 15kHz subcarrier spacing, normal CP, resource pool 2 using 60kHz subcarrier spacing, extended CP. According to a first corresponding relation, it can be determined that different resource pools can correspond to different basic parameter sets, wherein the first corresponding relation represents the corresponding relation between the resource pools and the basic parameter sets. The first sideline channel uses the resource in the first resource pool, and the basic parameter set of the resource pool can be determined according to the first corresponding relation, and the basic parameter set used by the first sideline channel is also determined.

Scene 2,

A first processing unit 51, where the first sidelink channel is transmitted on a first carrier, and according to the first carrier and a second correspondence, a first basic parameter set is determined in at least one basic parameter set as a basic parameter set used by the first sidelink channel; wherein the second correspondence is a correspondence between at least one carrier and at least one basic parameter set.

In this scenario, when the first sidelink channel is transmitted on the first carrier, the first processing unit 51 may select a first basic parameter set corresponding to the first carrier according to the first corresponding relationship.

It should be noted that the foregoing is only an example, and specifically which basic parameter set is used in which carrier may be determined by means of pre-configuration or network configuration.

In addition, regarding the second corresponding relationship that different carriers correspond to different basic parameter sets, different basic parameter sets may be corresponding to different carrier frequency bands; for example, NR-V2X supports two carrier bands, frequency range 1 (FR 1, frequency range 1) and Frequency range 2 (FR 2, frequency range 1); the second correspondence may be that different sets of basic parameters may be used in different carrier bands, such as 30kHz subcarrier spacing in the FR1 band, e.g. 3.4GHz, and 120kHz subcarrier spacing in the FR2 band, e.g. 30 GHz.

Specifically, when the first carrier is a carrier for transmitting uplink data; it may be determined that the first sidelink channel uses the same basic parameter set as the uplink data according to the first carrier and the second corresponding relationship.

That is to say, the configured second correspondence relationship may also be that the basic parameter set corresponding to the first type of carrier is the same as the basic parameter set of the uplink data; the corresponding basic parameter set on the second type carrier is the same as or different from the basic parameter set of the uplink data.

The first carrier is a carrier used for transmitting uplink data, and the second carrier is a special carrier. For example, V2X may operate on either a dedicated carrier (5.9 GHz) or an uplink carrier. The uplink data transmitted on the uplink carrier uses a 30kHz subcarrier spacing, and when V2X data is transmitted on this carrier, the V2X data is also transmitted using the same 30kHz subcarrier spacing as the uplink data. When V2X data is transmitted on a proprietary carrier, a pre-configured or network configured set of basic parameters is used, which may be the same or different from the set of basic parameters for upstream data.

It should be understood that the above embodiment is described by taking the first sidelink channel on the first carrier as an example, and the embodiment is also applicable to the case where the first sidelink channel is transmitted on a first Bandwidth Part (BWP), and the terminal determines the basic parameter set of the first sidelink channel according to the first Bandwidth Part and the corresponding relation. And will not be described in detail herein. Scene 3,

A first processing unit 51, where the first sideline channel is a first class sideline channel, and determines, according to the first class sideline channel and a third correspondence, a first basic parameter set as a basic parameter set used by the first sideline channel in at least one basic parameter set; wherein the third correspondence is a correspondence between at least one type of channel and at least one basic parameter set.

In this scenario, the at least one type of channel may be multiple types, where the first type of sidelink channel is a channel used by the terminal device. For example, the at least one type of information may include a PSBCH or a channel for transmitting PSSS/SSSS, and may also include other types of channels, which are not described herein again. Accordingly, one basic set of parameters is used for the PSHCH or the channel transmitting the PSSS/SSSS, e.g. 15kHz subcarrier spacing, normal CP; other kinds of channels employ other basic parameter sets.

Scene 4,

A first processing unit 51, where the data transmitted by the first sideline channel has a first service characteristic, and according to the first service characteristic and a fourth corresponding relationship, a first basic parameter set is determined in at least one basic parameter set as a basic parameter set used by the first sideline channel; wherein the fourth corresponding relationship is a corresponding relationship between at least one service characteristic and at least one basic parameter set.

In this scenario, the sideline channel may transmit data with multiple service characteristics, and when the data transmitted by the sideline channel has the first service characteristic, the first basic parameter set may be selected from the fourth correspondence according to the first service characteristic.

For example, the at least one basic parameter set may be two basic parameter sets; correspondingly, two types of services to be transmitted are assumed; that is, two basic parameter sets are predefined, the first basic parameter set is adopted when the service to be transmitted belongs to the first type of service, and the second basic parameter set is adopted when the service to be transmitted belongs to the second type of service.

The characteristics of the traffic to be transmitted comprise one of: delay requirement and Quality of Service (QoS) information of the Service to be transmitted; for example, different types of services to be transmitted are divided, and the division can be performed according to the delay requirements of the services, for example, the services to be transmitted with high delay and the services to be transmitted with low delay can be divided; or QoS is adopted for division, for example, qoS is adopted for service division through QoS parameters QCI, assuming that QCI 1-5 is a first class of service and QCI6-9 is a second class of service, of course, other division modes may also exist, which may be three or more classes of service, and each class of service corresponds to different basic parameter sets.

Scene 5,

A first processing unit 51, where the first sideline channel uses a first type of synchronization source type as a synchronization source, and determines, according to the first type of synchronization source type and a fifth corresponding relationship, a first basic parameter set as a basic parameter set used by the first sideline channel in at least one basic parameter set; wherein the fifth correspondence is a correspondence between at least one synchronization source type and at least one basic parameter set.

Finally, it should be noted that, in the first case, the first side row channel is one of a physical side row shared channel (psch), a physical side row control channel (PSCCH), or a physical side row broadcast channel (PSBCH). Of course, it should be understood that the first sideline channel may also be other types of channels, which are not described herein again.

In the second case, the first processing unit 51 determines the basic parameter set used by the first sideline channel according to the indication of the second channel, specifically as follows:

the first processing unit 51 may determine the basic parameter set used in the first sideline channel according to an explicit indication or an implicit indication of the second channel.

Scene 1,

The second channel includes first indication information, and the first processing unit 51 determines a basic parameter set used in the first side channel according to the first indication information, where the first indication information is used to indicate the basic parameter set used by the first side channel.

In this scenario, the first side-row channel is a physical side-row shared channel PSCCH, and the second channel is a physical side-row control channel PSCCH or a physical downlink control channel PDCCH. Of course, other situations may also be possible, for example, the first side channel is PSCCH, and the second channel is PDCCH.

For example, the second channel adopts an explicit indication, which may be determined directly according to indication information carried in the second channel, for example, 1 bit of information is adopted, and the 1 bit of information is used to indicate the basic parameter set of the first sideline channel; of course, if the number of basic parameter sets is greater than 2, more bits may be used to indicate the basic parameter set of the first sideline channel, for example, 3 bits may be used to indicate, assuming that 000 is used to indicate the first basic parameter set, 001 is used to indicate the second basic parameter set, and 010 is used to indicate the third basic parameter set; it should be understood that there may be more bits for indicating more basic parameter sets, but this embodiment is not exhaustive.

Scene 2,

The second channel adopts implicit indication, and can include: the first processing unit 51 indicates the demodulation reference signal DMRS of the second channel or indicates the scrambling code information of the second channel.

Wherein the indicating through the DMRS of the second channel includes: and determining a basic parameter set used by the first sidelink channel according to a sixth corresponding relationship and at least one of the sequence, the cyclic shift, the Orthogonal Cover Code (OCC), the resource position and the root sequence of the DMRS corresponding to the second channel, wherein the sixth corresponding relationship is the corresponding relationship between the basic parameter set and at least one of the sequence, the cyclic shift, the Orthogonal Cover Code (OCC), the resource position and the root sequence of the DMRS.

It should be understood that the sixth corresponding relationship may also be configured on the network side or preset. For example, by PSCCH DMRS indicates: the different basic parameter sets may be indicated by a sequence of DMRS, cyclic shift, OCC (Orthogonal Cover Code), resource location, root sequence, and the like. Specifically, different DMRS sequences may correspond to different basic parameter sets, different cyclic shifts may also correspond to different basic parameter sets, different OCCs correspond to different basic parameter sets, different resource locations correspond to different basic parameter sets, and different following sequences correspond to different basic parameter sets; each parameter may be used simultaneously or partially, and only one parameter may be used to correspond to the basic parameter set.

And/or the scrambling code information indication through the second channel comprises: the first processing unit 51 determines a basic parameter set used by the first sideline channel according to the scrambling code information of the second channel and a seventh corresponding relationship, where the seventh corresponding relationship is a corresponding relationship between at least one scrambling code information and at least one basic parameter set.

That is, the basic parameter set used by the first sidelink channel may be determined based on the scrambling code used by the second channel by pre-configuration or network-side configuration of the seventh correspondence. For example, the information bits of the second channel, i.e. PSCCH, need to be scrambled, and the basic parameter set used by the first side channel, e.g. PSCCH, may be implicitly indicated by the different scrambling sequence used by the second channel.

In actual transmission, the first sidelink channel and the second channel may be transmitted in a Time Division Multiplexing (TDM) manner, where the second channel occupies the first K symbols and the first sidelink channel occupies the remaining symbols, and in this case, the first sidelink channel and the second channel, such as the PSCCH and PSCCH, may use different basic parameter sets. For example, the PSCCH uses a 15kHz subcarrier spacing and the psch uses a 30kHz subcarrier spacing.

Or, the first side-row channel is a PSCCH, and the second channel is a PDCCH.

Example four,

An embodiment of the present invention provides a network device, as shown in fig. 6, including:

the second processing unit 61 determines configuration information, wherein the configuration information is used for the terminal equipment to determine a basic parameter set used by the first sideline channel;

and a second communication unit 62, configured to send the configuration information to the terminal device.

And a second communication unit 62, configured with at least one basic parameter set for the terminal device. That is to say, in the scheme provided in this embodiment, the network side may also configure one or more basic parameter sets for the terminal device in advance; the configuration mode may be sending through system signaling or sending through other modes, which is not exhaustive here.

scene 1,

Scene 2,

For example, considering a backward compatible Rel-14 or Rel-15 terminal, a 15kHz, normal CP basic parameter set is adopted on a carrier with Rel-14 or Rel-15; other sets of basic parameters may be employed on other carriers.

Specifically, the configured second corresponding relationship may also be that the basic parameter set corresponding to the first type of carrier is the same as the basic parameter set of the uplink data; the corresponding basic parameter set on the second type carrier is the same as or different from the basic parameter set of the uplink data.

It should be understood that the above embodiment is described by taking the first sidelink channel on the first carrier as an example, and the embodiment is also applicable to the case where the first sidelink channel is transmitted on a first Bandwidth Part (BWP), and the terminal determines the basic parameter set of the first sidelink channel according to the first Bandwidth Part and the corresponding relation. And will not be described in detail herein.

Scene 3,

The configuration information is used for indicating a third corresponding relation between at least one channel and at least one basic parameter set.

In this scenario, the at least one type of channel may be multiple types, for example, the at least one type of information may include a PSBCH or a channel for transmitting a PSSS/SSSS, and may also include other types of channels, which is not described herein again. Accordingly, one basic set of parameters is used for the PSHCH or the channel transmitting the PSSS/SSSS, e.g. 15kHz subcarrier spacing, normal CP; other kinds of channels employ other basic parameter sets.

Scene 4,

In this scenario, the sideline channel may transmit data with multiple service characteristics, for example, when the data transmitted by the terminal device has the first service characteristic, the first basic parameter set may be selected from the fourth correspondence according to the first service characteristic.

The characteristics of the traffic to be transmitted comprise one of: delay requirement and Quality of Service (QoS) information of a Service to be transmitted; for example, different types of services to be transmitted are divided, and the division can be performed according to the delay requirements of the services, for example, the services to be transmitted with high delay and the services to be transmitted with low delay can be divided; or QoS is adopted for division, for example, qoS is adopted for service division through QoS parameters QCI, assuming that QCI 1-5 is a first class of service and QCI6-9 is a second class of service, of course, other division modes may also exist, which may be three or more classes of service, and each class of service corresponds to different basic parameter sets.

For example, the delay requirements of the service to be transmitted are divided into two categories, type 1: delay is less than or equal to 10ms, type 2: the time domain is greater than 10ms. For type 1, the corresponding basic parameter set is 60kHz subcarrier spacing, and for type 2, the corresponding basic parameter set is 15kHz subcarrier spacing. When the data transmitted by the first side row channel is the service of type 1, the data transmission is carried out by adopting the subcarrier interval of 60 kHz; when the data transmitted by the first sidelink channel is the type 2 service, the data transmission is performed with a subcarrier spacing of 15 kHz.

Scene 5,

In the second case, the second communication unit 62 transmits the indication information to the terminal device through the second channel.

Scene 1,

The second channel comprises first indication information, wherein the first indication information is used for indicating the basic parameter set used by the first sideline channel.

For example, the second channel uses an explicit indication, which may be determined directly according to indication information carried in the second channel, for example, 1 bit of information is used, and the basic parameter set of the first sideline channel is indicated by the 1 bit of information; of course, if the number of basic parameter sets is greater than 2, more bits may be used to indicate the basic parameter set of the first sideline channel, for example, 3 bits may be used for indication, assuming that 000 is used to indicate the first basic parameter set, 001 is used to indicate the second basic parameter set, and 010 is used to indicate the third basic parameter set; it should be understood that there may be more bits for indicating more basic parameter sets, but this embodiment is not exhaustive.

Scene 2,

That is, the network device may implicitly indicate through the DMRS of the second channel. It should be understood that the sixth corresponding relationship may also be configured on the network side or preset. For example, by PSCCH DMRS indicates: the different basic parameter sets may be indicated by a sequence of DMRS, cyclic shift, OCC (Orthogonal Cover Code), resource location, root sequence, and the like. Specifically, different DMRS sequences may correspond to different basic parameter sets, different cyclic shifts may also correspond to different basic parameter sets, different OCCs correspond to different basic parameter sets, different resource locations correspond to different basic parameter sets, and different following sequences correspond to different basic parameter sets; each parameter may be used simultaneously or partially, and only one parameter may be used to correspond to the basic parameter set.

And/or the network device may implicitly indicate through the scrambling code information of the second channel, including: and determining a basic parameter set used by the first sideline channel according to the scrambling code information of the second channel and a seventh corresponding relation, wherein the seventh corresponding relation is the corresponding relation between at least one piece of scrambling code information and at least one basic parameter set.

In actual transmission, the first sidelink channel and the second channel may be transmitted in a Time Division Multiplexing (TDM) manner, the second channel occupies the first K symbols, the first sidelink channel occupies the remaining symbols, and in this case, different basic parameter sets may be used for the first sidelink channel and the second channel. For example, the first sideline channel may employ a subcarrier spacing of 15kHz and the second channel may employ a subcarrier spacing of 30 kHz.

Further, in the second case, the first sidelink channel is a physical sidelink shared channel PSSCH, and the second channel is a physical downlink control channel PDCCH.

Or the first side row channel is a PSCCH, and the second channel is a PDCCH.

Fig. 7 is a schematic structural diagram of a communication device 700 according to an embodiment of the present application. The communication device 700 shown in fig. 7 comprises a processor 710, and the processor 710 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 7, the communication device 700 may also include a memory 720. From the memory 720, the processor 710 can call and run a computer program to implement the method in the embodiment of the present application.

The memory 720 may be a separate device from the processor 710, or may be integrated into the processor 710.

Optionally, as shown in fig. 7, the communication device 700 may further include a transceiver 730, and the processor 710 may control the transceiver 730 to communicate with other devices, and in particular, may transmit information or data to the other devices or receive information or data transmitted by the other devices.

The transceiver 730 may include a transmitter and a receiver, among other things. The transceiver 730 may further include an antenna, and the number of antennas may be one or more.

Optionally, the communication device 700 may specifically be a network device in the embodiment of the present application, and the communication device 700 may implement a corresponding process implemented by the network device in each method in the embodiment of the present application, which is not described herein again for brevity.

Optionally, the communication device 700 may specifically be a terminal device or a network device in the embodiment of the present application, and the communication device 700 may implement a corresponding process implemented by a mobile terminal/a terminal device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Fig. 8 is a schematic structural diagram of a chip of the embodiment of the present application. The chip 800 shown in fig. 8 includes a processor 810, and the processor 810 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 8, chip 800 may further include a memory 820. From the memory 820, the processor 810 can call and run a computer program to implement the method in the embodiment of the present application.

The memory 820 may be a separate device from the processor 810 or may be integrated into the processor 810.

Optionally, the chip 800 may further include an input interface 830. The processor 810 may control the input interface 830 to communicate with other devices or chips, and specifically, may obtain information or data transmitted by other devices or chips.

Optionally, the chip 800 may further include an output interface 840. The processor 810 can control the output interface 840 to communicate with other devices or chips, and in particular, can output information or data to other devices or chips.

Optionally, the chip may be applied to the network device in the embodiment of the present application, and the chip may implement a corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the chip may be applied to the terminal device in the embodiment of the present application, and the chip may implement a corresponding process implemented by the terminal device in each method in the embodiment of the present application, and for brevity, details are not described here again.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip, etc.

Fig. 9 is a schematic block diagram of a communication system 900 according to an embodiment of the present application. As shown in fig. 9, the communication system 900 includes a terminal device 910 and a network device 920.

The terminal device 910 may be configured to implement the corresponding function implemented by the terminal device in the foregoing method, and the network device 920 may be configured to implement the corresponding function implemented by the network device in the foregoing method, for brevity, which is not described herein again.

It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or by instructions in the form of software. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. The volatile Memory may be a Random Access Memory (RAM) which serves as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), dynamic Random Access Memory (DRAM), synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), double Data Rate Synchronous Dynamic random access memory (DDR SDRAM), enhanced Synchronous SDRAM (ESDRAM), synchronous link SDRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that the above memories are exemplary but not limiting illustrations, for example, the memories in the embodiments of the present application may also be Static Random Access Memory (SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (enhanced SDRAM, ESDRAM), synchronous Link DRAM (SLDRAM), direct Rambus RAM (DR RAM), and the like. That is, the memory in the embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

The embodiment of the application also provides a computer readable storage medium for storing the computer program.

Optionally, the computer-readable storage medium may be applied to the network device in the embodiment of the present application, and the computer program enables a computer to execute corresponding processes implemented by the network device in the methods in the embodiment of the present application, which are not described herein again for brevity.

Optionally, the computer-readable storage medium may be applied to the terminal device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

Embodiments of the present application also provide a computer program product comprising computer program instructions.

Optionally, the computer program product may be applied to the network device in the embodiment of the present application, and the computer program instructions enable the computer to execute corresponding processes implemented by the network device in the methods in the embodiment of the present application, which are not described herein again for brevity.

Optionally, the computer program product may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in the methods in the embodiment of the present application, which are not described herein again for brevity.

The embodiment of the application also provides a computer program.

Optionally, the computer program may be applied to the network device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute the corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the computer program may be applied to the mobile terminal/terminal device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It can be clearly understood by those skilled in the art that, for convenience and simplicity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one type of logical functional division, and other divisions may be realized in practice, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A data transmission method is applied to terminal equipment and comprises the following steps:

determining a basic parameter set used by the first sideline channel according to the corresponding relation, wherein the basic parameter set comprises: subcarrier spacing, cyclic prefix CP length or type;

transmitting data on the first sideline channel according to the basic parameter set,

wherein, the determining the basic parameter set used by the first sideline channel according to the corresponding relation includes:

the first sidelink channel is transmitted on a first carrier, and a first basic parameter set is determined to be a basic parameter set used by the first sidelink channel in at least one basic parameter set according to the first carrier and a second corresponding relationship, wherein the second corresponding relationship is a corresponding relationship between at least one carrier and the at least one basic parameter set;

wherein the first carrier is a carrier for transmitting uplink data; the first side channel adopts the same basic parameter set as the uplink data.

2. A data transmission method is applied to network equipment and comprises the following steps:

the network equipment determines configuration information, wherein the configuration information is used for the terminal equipment to determine a basic parameter set used by a first sideline channel according to the corresponding relation; the first sidelink channel is transmitted on a first carrier; the basic parameter set includes: subcarrier spacing, cyclic prefix CP length or type;

the network equipment sends the configuration information to the terminal equipment; the configuration information is used for indicating a second correspondence between at least one carrier and at least one basic parameter set;

when the first carrier is a carrier for transmitting uplink data, determining that the first side channel adopts the same basic parameter set as the uplink data according to the first carrier and the second corresponding relation.

3. The method of claim 2, further comprising:

configuring the at least one basic parameter set for the terminal device.

4. The method of claim 2, wherein the first side row channel is a physical side row shared channel (PSSCH), a physical side row control channel (PSCCH), or a physical side row broadcast channel (PSBCH).

5. The method of claim 2, further comprising:

and the network equipment sends indication information to the terminal equipment through a second channel.

6. The method of claim 5, wherein the second channel comprises first indication information, wherein the first indication information is used to indicate a basic parameter set used by the first sideline channel.

7. The method of claim 5, wherein the configuration information is further configured to indicate at least one of:

8. A terminal device, comprising:

a first processing unit configured to determine a basic parameter set used by a first sideline channel according to a correspondence, the basic parameter set including: subcarrier spacing, cyclic prefix CP length or type;

a first communication unit configured to perform data transmission on the first sidelink channel according to the basic parameter set;

wherein the first processing unit is further configured to, when the first sidelink channel is transmitted on a first carrier, determine, in at least one basic parameter set, a first basic parameter set as a basic parameter set used by the first sidelink channel according to the first carrier and a second correspondence, where the second correspondence is a correspondence between at least one carrier and the at least one basic parameter set; wherein the first carrier is a carrier for transmitting uplink data; the first side-row channel adopts the same basic parameter set as the uplink data.

9. A network device, comprising:

the second processing unit is configured to determine configuration information, and the configuration information is used for the terminal equipment to determine a basic parameter set used by the first sideline channel according to the corresponding relation; the first sidelink channel is transmitted on a first carrier; the basic parameter set includes: subcarrier spacing, cyclic prefix CP length or type;

a second communication unit configured to transmit the configuration information to the terminal device; the configuration information is used for indicating a second correspondence between at least one carrier and at least one basic parameter set; when the first carrier is a carrier for transmitting uplink data, determining that the first side-row channel adopts the same basic parameter set as the uplink data according to the first carrier and the second corresponding relation.

10. A terminal device, comprising:

a processor;

a memory having instructions stored thereon that are executable by a processor;

the method of claim 1 is performed when the processor executes instructions on the memory.

11. A network device, comprising:

a processor;

a memory having stored thereon instructions executable by a processor;

the method of any of claims 2 to 7 when executed by the processor on the memory.